Examples described herein involve expanding playback of a media item from a first playback device to a second playback device. In one example, while a first playback device is playing a media item as part of a first zone, the first playback device identifies that a second playback device has moved to a location that is within a given physical proximity of the first playback. The first playback device determines that playback is to be expanded to the second playback device, and transmits a command to cause the second playback device to (i) join the first zone and (ii) begin to play the media item in synchrony with the first playback device.

An electronic device according to various embodiments disclosed in this document may include wireless communication circuitry, a memory, and a processor operatively connected to the memory and the wireless communication circuitry. The processor may be configured to identify a location of a terminal in an area in which a plurality of display devices have been installed and select one of the plurality of display devices, receive content from the terminal through the wireless communication circuitry and convert a first form of the content into a second form of the content, the second form being supported in the selected one display device, and stream the content in the second form, to the selected one display device based on a User Datagram Protocol (UDP) protocol.

A screen control method and an apparatus are provided. The method includes: in a case that a screen of multi-party video communication is displayed, receiving a first input by a first user; and in response to the first input, establishing a first communication connection between a first electronic device and a second electronic device. Both the first electronic device and the second electronic device are electronic devices participating in the multi-party video communication. The first communication connection is used to transmit a control instruction of the second electronic device on a screen display content of the first electronic device. In a case that the control instruction is received, a control operation corresponding to the control instruction is performed on the screen display content of the first electronic device.

A screen control method and an apparatus are provided. The method includes: in a case that a screen of multi-party video communication is displayed, receiving a first input by a first user; and in response to the first input, establishing a first communication connection between a first electronic device and a second electronic device. Both the first electronic device and the second electronic device are electronic devices participating in the multi-party video communication. The first communication connection is used to transmit a control instruction of the second electronic device on a screen display content of the first electronic device. In a case that the control instruction is received, a control operation corresponding to the control instruction is performed on the screen display content of the first electronic device.

A method for transferring a call, including: receiving an instruction to transfer a call from a first communication module to a second communication module of a mobile terminal, wherein the first communication module is connected via a wireless near-field connection to the mobile terminal, and wherein the first communication module has a first communication profile of a user, and the second communication module has a second communication profile of the user; deactivating the wireless near-field connection; and transferring the call from the first communication module to the second communication module of the mobile terminal.

Video-assisted presence detection is used to enhance a user experience in telephony communications. Image data, video data, or both, from a camera are used to determine whether a user is present at their device before a call is transferred to him or her. The video-assisted presence detection can be implemented based on a privacy setting. For example, one implementation allows a system to have partial access to the camera to perform a scan to detect that there is a human present without capturing facial information, and without identifying that person. Another implementation allows the system to have partial access to the camera to scan the a face of a user, but not have access to the video feed of the camera. Another implementation allows the system to have full access to the camera.

A system for one-touch split-mode conference access includes a client, a server, a voice over internet protocol (VOIP) device and a telephony server. The client obtains information associated with a conference and transmits the information to the server. The server transmits the information to the VOIP device, which is paired to the client based on a user account. The VOIP device displays a notification based on the received information. The VOIP device obtains an input from the user. The input is based on the notification. The VOIP device transmits call information based on the input to the telephony server. The telephony server initiates the audio component of the conference on the VOIP device.

A voice call method, device and system, the method including establishing, by a first device, a Bluetooth link to a second device, receiving, by the first device, call request information sent by a third device, sending the call request information to a second device through the Bluetooth link, sending, by the first device in response to an answer command from the second device, the answer command to the third device, establishing, by the first device, a call with the third device, sending a downlink audio signal received from the third device to the second device, or sending and uplink audio signal received from the second device to the third device, and converting, by the first device, in response to a sound channel switching command and receiving a downlink audio signal sent by the third device, the downlink audio signal into a sound signal, and playing the sound signal.

A voice call method, device and system, the method including establishing, by a first device, a Bluetooth link to a second device, receiving, by the first device, call request information sent by a third device, sending the call request information to a second device through the Bluetooth link, sending, by the first device in response to an answer command from the second device, the answer command to the third device, establishing, by the first device, a call with the third device, sending a downlink audio signal received from the third device to the second device, or sending and uplink audio signal received from the second device to the third device, and converting, by the first device, in response to a sound channel switching command and receiving a downlink audio signal sent by the third device, the downlink audio signal into a sound signal, and playing the sound signal.

A wireless communication network delivers policy enforcement to a wireless user device in another wireless communication network. The wireless communication network wirelessly serves the wireless user device based on a policy. The wireless communication network determines when the wireless user device is visiting the other wireless communication network, and in response, selects the policy for the wireless user device. The wireless communication network transfers the selected policy for the wireless user device to the other wireless communication network. The other wireless communication network receives and enforces the selected policy for the wireless user device.